The story opens with Celestine eluding arrest with a friend as the police raid a brothel. While hiding out in the hayloft of the Count de la Braquette's estate, she meets the hayseed handyman Sébastien and the butler Malou, who reward her favors with the offer of employment. In a manner recalling Terence Stamp's effect on the household in TEOREMA, Celestine's open and relaxed attitude toward sexuality has a transformative effect on the isolated, moribund inhabitants of the mansion, imbuing them with gift of renewed life for the men and women alike, that remains even after a third act twist that forces her to betray them.

A young woman is hired to care for an elderly man who lives on an island off the Greek coast. When she arrives there the man warns her that his daughters are evil and dangerous. The woman discovers that one of the daughters is a crazed nymphomaniac who pursues, and seduces, everyone in the house, including her crippled sister.